Spanner wrench



June 26, 1934. o. HUMBURG 1,964,121

SPANNER WRENCH Filed 001; 2. 1933 Oflo HumZury Patented June 26, 1934UNlT TES l,964,l2l

2 Claims.

This invention relates to a spanner wrench and has for its object toprovide, in a manner :as hereinafter set forth, a wrench of the typereferred to so constructed to provide for its 5 adaptability for theseveral different forms of couplings employed in beer taps when occasionrequires, or in other words to provide a spanner wrench of a whereby itis capable of being employed for loosening, tightening or removal '10 ofa series of couplings of dififerent forms constituting elements of abeer tap. It is to be understood, however, that although the wrench isdesigned primarily for the purpose referred to, it is not iiied to suchuse, as it is to be employed o any connection for which it is found appcable.

IFur-tl er objects of the invention are to provide, a manner hereinafterset forth, a wrench for the purpose referred to which is simple in itsconstruction, strong, durable, compact,

thoroughly efiicient in its use, readily positioned with respect to theobject with which it is to be used, conveniently shifted for loosening,tightening and removal purposes, and inexpensive to manufacture.

To the above ends essentially and to others which may hereinafterappear, the invention consists of a construction of spanner wrench whichfalls within the scope of the invention as claimed.

In the drawing:

Figure l is an elevation of the wrench looking towards one side thereof.

Figure 2 is an edge view of the wrench looking towards the outer endthereof.

35, Figure 3 is a fragmentary View in side elevation showing the outerend or" the wrench and the adaptability of he wrench when employed inconnection with the outer coupling of a peer tap.

Figure 4 is a view similar to Figure 3 illusrating the adaptability oithe wrench when employed in connection with the intermediate coupling ofa beer tap.

Figure 5 is a view similar to Figure 3 illustrating the adaptability or"the wrench when employed in connection with the inner coupling of a beertap.

A beer tap of well known construction and use includes as elementsthereof an outer, an

:59 intermediate and an inner coupling, each being The arms or cars ofthe outer coupling are of less length than those of the intermediatecoupling, but of greater length than those of the inner couplin Theouter coupling is indicated at 1 and its or ears at 2. The intermediate69 coupling is designated at 3 and the arms or ears at 4. The innercoupling is indicated at 5 and its arms or ears at 6. The couplingsreferred to are illustrated by way of example for the purpose of howingthe adaptability of the wrench therewith.

The wrench comprises a one-piece body '7 of the desired length, width,strength and rigidity and said body '7 is formed to provide a handlepart 8 merging at one end into a head part 9 from 70 which extends apair of offset spaced jaws 10, 11, the former being of greater lengththan the latter. The width of each jaw is less than the width of thehandle part. The head part 9 at its outer end has a segmental edgeportion 12.

The jaw 10 is disposed to extend in a diagonal direction with respect tohead part 8. The jaw 11 is disposed lengthwise with respect to head part8. The jaw 10 is of less width than jaw 11 and has the part 13 of itsinner edge upon a slight curve and with such part 13 extending from itsinner to its outer end at a slight inclination in a direction towardsthe outer side edge of the jaw 10. The inner end of part 13 merges intoone end of edge portion 12. The remaining part 14 of the inner edge ofjaw 10 is upon a slight curve throughout and upon a greater inclinationthan part 13. The part 14 merges at its inner end in the outer end ofpart 13 and has its outer end at the outer end of jaw 10. The part 14 isinclined in an opposite direction with respect to the direction ofinclination of and is of less length than part 13. The outer edge 15 ofjaw 10 is of ogee curvature, terminates at its nner end in the outer endof one side edge of head part 9 and at its outer end merges into theouter end or" part 14 of the inner edge of jaw 10. Owing to the contourof the side edge of jaw 10, the latter gradually decreases in width fromhead part 9 and is formed with a pointed outer terminal portion 16. v

The length of jaw 11 is equal substantially to half the length of thatof jaw 10. The jaw 11 has its inner side edge formed with a segmentalshaped inner portion 17 which merges at one end into the other end ofedge portion 12 of head 10 part 9. The remaining portion 18 of theinner, side edge of jaw 11 is disposed at an inclination and is of alength to intersect intermediate the ends thereof a line forming acontinuation of the longitudinal median of the handle and head .l

parts 8, 9 respectively. The inclination of the portion 18 of the inneredge of jaw 11 is less than the inclination of the part 13 of jaw 10.The portion 18 of the inner edge of jaw 11 is arranged opposite and isof less length than the part 13 of the inner edge ofjaw 10. The edgepart 12, edgepart l3 and edge portion 18 coacts to provide a gullet 19which gradually increases in width in a direction towards its outer end.The inner edge of 'jaw 11, in cross section, is of concave curvature, asat 20. The outer edge 21 of jaw 11 is of ogee curvature and the outerend of such edge merges into the outer end of edge portion 18. Thecurvature of the outer side edge 21 of jaw 11 in connection with thecontour of the inner side edge of the latter provides the jaw 11 with aninner portion 22 of substantially uniform width and an outer pointedportion 23 which decreases in width from the said inner portion.

The wrench provides a clamping point 24 on jaw 11, and a pair of spacedclamping points 25, 26 on jaw 10 when used to tighten, loosen or removecoupling 1, a clamping point 27 substantially the length of the inneredge of jaw 11 and a clamping point 28 on jaw 10 when used to tighten,loosen or remove coupling 2 and a clamping point 29 on jaw 11 and aclamping point 30 on jaw 10 when employed to tighten, loosen or removecoupling 3.

Handle part 7 at its inner end is formed with an opening 31 forconnecting it to a support therefor.

What I claim is:

1. A wrench comprising a handle part, a head part extended from one endof the handle part and having an outer end edge, a short jaw integralwith and offset with respect to said head part and disposed in adirection lengthwise with respect to said handle part, said jaw havingan inclined inner side edge disposed in a direction to intersect a lineforming a continuation of the longitudinal median of the handle part, ajaw of greater length than said other jaw integral with and disposed ina direction diagonally with respect to said head part, said elongatedjaw having its inner side edge formed of an inner and an outer inclinedportion, said inner portion disposed in a direction to extend away fromsaid line and the inner edge of said short jaw, said inner side edgeportion of the elongated jaw being disposed in spaced relation to theinner side edge of the short jaw, said outer portion being of lesslength than said inner portion and disposed in a direction to extendtowards said line, the edge at the outer end of said head part, theinner edge of said short jaw and the inner edge portion of saidelongated jaw coacting to provide a gullet gradually increasing in widthfrom its inner towards its outer end, and the said elongated jawextending beyond the outer end of said short jaw.

2. A wrench comprising a handle part, a head part extended from one endor" the handle part and having an outer end edge, a short jaw integralwith and offset with respect to said head part and disposed in adirection lengthwise with respect to said handle part, said jaw havingan inclined inner side edge disposed in a direction to intersect a lineforming a continuation of the longitudinal median of the handle part, ajaw of greater length than said other jaw integral with and disposed ina direction diagonally with respect to said head part, said elongatedjaw having its inner side edge formed of an inner and an outer inclinedportion, said inner portion disposed in a direction to extend away fromsaid line and the inner edge of said short jaw, said inner side edgeportion of the elongated jaw being disposed in spaced relation to theinner side edge of the short jaw, said outer portion being of lesslength than said inner portion and disposed in a direction to extendtowards said line, the edge at the outer end of said head part, theinner edge of said short jaw and the inner edge portion of saidelongated jaw coacting to provide a gullet gradually increasing in widthfrom its inner towards its outer end, and the said elongated jawextending beyond the outer end or" said short jaw, the inner edge ofsaid short jaw being concave in cross section and of less length thanthe length of the inner edge portion of said elongated jaw.

OTTO HUMBURG.

